/Engine/Plugins/Runtime/StateTree/Source/StateTreeEditorModule/Public/StateTreeState.h
Adds child state with specified name.
[UStateTreeState](API\Plugins\StateTreeEditorModule\UStateTreeState) & AddChildState ( const [FName](API\Runtime\Core\UObject\FName) ChildName, const [EStateTreeStateType](API\Plugins\StateTreeModule\EStateTreeStateType) StateType )